camper/deploy/check_cookie.sql

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-- Deploy camper:check_cookie to pg
-- requires: roles
-- requires: schema_public
-- requires: schema_auth
-- requires: user
-- requires: company_host
-- requires: company_user
begin;
set search_path to public, auth;
create or replace function check_cookie(input_cookie text, host text) returns name as
$$
declare
cid text;
user_email text;
user_role name;
user_cookie text;
begin
select company_id::text, email::text, role, cookie
into cid, user_email, user_role, user_cookie
from "user"
join company_user using (user_id)
join public.company_host using (company_id)
where email = split_part(input_cookie, '/', 2)
and cookie_expires_at > current_timestamp
and length(password) > 0
and cookie = split_part(input_cookie, '/', 1)
and company_host.host = check_cookie.host
;
if user_role is null then
cid := '0';
user_email := '';
user_cookie := '';
user_role := 'guest'::name;
end if;
perform set_config('request.user.email', user_email, false);
perform set_config('request.user.cookie', user_cookie, false);
perform set_config('request.company.id', cid, false);
return user_role;
end;
$$
language plpgsql
security definer
stable
set search_path = auth, camper, pg_temp;
comment on function check_cookie(text, text) is
'Checks whether a given cookie is for a valid users, returning their role, and setting current_user_email and current_user_cookie';
revoke execute on function check_cookie(text, text) from public;
grant execute on function check_cookie(text, text) to authenticator;
commit;